| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ceramics and Ceramic-based Composites for Nuclear Fission Applications
|
| Presentation Title |
Evaluating the Strength of TRISO Pebbles via Drop Tests and Nondestructive Techniques |
| Author(s) |
Assel Aitkaliyeva, Mitchell Mika |
| On-Site Speaker (Planned) |
Assel Aitkaliyeva |
| Abstract Scope |
Understanding and quantifying the degradation of fuel pebbles is key to qualifying them for use in next generation advanced reactors. In this contribution, we assess the integrity of the pebbles using a combination of drop tests and nondestructive evaluation techniques. The pebbles are dropped from the predetermined height (consistent with existing high temperature gas reactor designs) onto three different surfaces: graphite, concrete, and metal. The integrity of the pebbles after the drop is then assessed using nondestructive techniques such as ultrasound and X-ray tomography. We developed a new and robust testing approach that allows evaluating a large number of samples quickly, which can be easily adapted to use during reactor operations. The results of the drop testing provide a baseline for the drop strength of TRISO pebbles to inform reactor design standards. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Mechanical Properties, Characterization |